Extraction of near-axis scattered light for transillumination imaging

Kazuto Takagi, Yuji Kato, Koichi Shimizu

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

To suppress the scattering effect in transillumination imaging, a technique was developed to extract a near-axis scattered light (NASL) component from diffused light through a scattering medium. A diffuser is inserted between the light source and the incident surface of a scattering medium. We can extract the NASL component by subtracting the light intensity at the output surface with a diffuser from that without a diffuser. The principle to determine the subtraction weight was presented. In experiments using model phantoms of mammalian tissue, the proposed technique's effectiveness was verified. The cross-section of the propagation area of scattered light was confined to an 8% area around the optical axis of the incident light beam. The usefulness of this technique was demonstrated by transillumination imaging of the blood column through a diffuse medium.

Original languageEnglish
JournalApplied Optics
Volume48
Issue number10
DOIs
Publication statusPublished - 2009 Apr 1
Externally publishedYes

Fingerprint

Transillumination
diffusers
Imaging techniques
scattering
Scattering
subtraction
light beams
luminous intensity
blood
light sources
propagation
output
cross sections
Light sources
Blood
Tissue

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Extraction of near-axis scattered light for transillumination imaging. / Takagi, Kazuto; Kato, Yuji; Shimizu, Koichi.

In: Applied Optics, Vol. 48, No. 10, 01.04.2009.

Research output: Contribution to journalArticle

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